ruminant

1. N any artiodactyl mammal of the suborder Ruminantia, the members of which chew the cud and have a stomach of four compartments, one of which is the rumen. The group includes deer, antelopes, cattle, sheep, and goats 反刍动物

2. ADJ of, relating to, or belonging to the suborder Ruminantia 反刍亚目的